Career opportunity Senior Software Engineer (Full Stack)
Senior Software Engineer (Full Stack)

- Locations
- Tokyo
- Salary
- ¥8,500,000〜¥12,000,000 (Annual)
- Recruitment industry
- Programmer, Backend Engineer, Frontend Engineer
- Employment status
- Full time employee
- Residency status
- Working visa (Skilled labor, Humanities knowledge, International services)
Job description
- Develop systems such as data management platforms or AI-powered quotation tools.
- Collaborate with PdMs, designers, and engineers from a user-centric perspective.
- Formulate technical strategies aligned with business goals.
- Lead technology selection and architecture design across frontend and backend.
- Define requirements, design UI/data based on product strategy.
- Maximize product value through new feature development.
- Improve design considering UX and business needs.
- Design infrastructure for scalability, maintainability, and performance.
- Handle non-functional requirements like security and performance.
Requirement
Must-have
- Technical leadership in full-stack development.
- Proven experience in solving delivery-related project/product challenges.
- Fluent Japanese communication skills (e.g., JLPT N2 level with 3+ years work experience in Japan).
- 7+ years of experience in frontend/backend development.
- Led development from frontend to infrastructure with tech decision-making.
- Experience improving productivity (e.g., CI/CD with Docker, coding conventions).
Nice-to-have
- Backend experience using statically-typed languages.
- UI/UX design experience (including working with designers).
- Led process improvement based on Scrum/Agile.
- Experience with large-scale systems, DDD, or microservices.
- Knowledge in secure web app development.
- Business-level English proficiency.
Ideal Candidate
- Excited by bold, global product goals.
- Takes initiative and ownership to solve fundamental challenges.
- Communicates with respect and empathy.
Benefits
- Annual salary: ¥8.5M–¥12M (monthly fixed salary)
- 2 salary reviews per year, stock options available
- Transportation allowance: ¥30,000/month (up to ¥60,000 for remote workers)
- Child allowance: ¥15,000/month per dependent under 18
- Team activity subsidies, book/learning support, server allowance
- Wedding gift: ¥50,000; Birth gift: ¥100,000; Relocation support
- Company PC provided, full medical checkup subsidy
Work Location
- Remote-first environment (weekly office visit recommended, offsite once or twice per quarter)
- Office available anytime (2-minute walk from JR Asakusabashi Station, Tokyo)
Work time
- Flexible working hours with core time: 11:00–16:00
- 2-day weekends, public holidays off
- Summer leave: 3 days, Year-end/New Year: 6 days
- Special leave upon joining: 3 days; Paid leave after 6 months
- Nursing/care leave: 4 days/year; Refresh leave every 5 years: 5 days
Location
Tokyo
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